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Books, Brochures, and Chapters>Book:  Chamberlain, Alexander Francis (201411), The Child: A Study in the Evolution of Man (Classic Reprint), Retrieved on 2018-07-27

Periodicals>Journal Article:  Jarrett, Christian (February 7, 2017), Longest Ever Personality Study Finds No Correlation Between Measures Taken at Age 14 and Age 77, Retrieved on 2017-03-10

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Books, Brochures, and Chapters>Book:  McGonigal, Jane (2011-01-20), Reality Is Broken, Penguin, Retrieved on 2014-06-21

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Books, Brochures, and Chapters>Book:  Pirsig, Robert M. (2009-04-21), Zen and the Art of Motorcycle Maintenance, HarperCollins, Retrieved on 2014-06-21

Source Material [books.google.com]

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Books, Brochures, and Chapters>Book:  Cain, Susan (2012-01-24), Quiet, Random House LLC, Retrieved on 2013-10-14

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